{"id":"CVE-2018-4284","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-4284","generatedAt":"2026-10-28T21:29:59.038Z","title":"A type confusion issue was addressed with improved memory handling.","description":"A type confusion issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.","published":"2019-04-03T18:29:05.000Z","lastModified":"2026-06-17T01:58:43.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-704"],"affected":["apple/safari","apple/iphone os","apple/tvos","apple/watchos","apple/icloud","apple/itunes"],"epss":{"score":0.01584,"percentile":0.75441,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://support.apple.com/kb/HT208932","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT208933","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT208934","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT208935","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT208936","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT208938","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT208932","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT208933","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT208934","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT208935","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT208936","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT208938","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-4284","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}